How Qi Charging Works
Once you set a Qi compatible smartphone on a Qi charging pad, an electrical charge is transferred from the Qi charger to a receiver coil in the back of the smartphone via electromagnetic induction. The charger uses an induction coil to create an alternating electromagnetic field, which the receiver coil in the back of the phone converts back into electricity to be fed into the battery. As a common example, inductive charging is the same technology utilized by the most well-known electronic toothbrushes.
